... 1 / 30. 2, thermal insulation, thermal conductivity: 0.035W/mk. 3, high intensity, can be used for building envelope, bearing structure ... 2) sandwich thickness (mm) :40-300 2, length (mm): Open 3, the effective width (mm): wall 1200,1150,950 Quality Characteristics ... 1 / 30. 2, thermal insulation, thermal conductivity: 0.035W/mk. 3, high intensity, can be used for building envelope, bearing structure ...